Answer:
11
Step-by-step explanation:
As per attached diagram:
Given
- AC = 18, BC = 6x + 5 and AB = 5x + 2
To find the value of BC, we need to find the value of x:
- 6x + 5 + 6x + 2 = 18
- 11x + 7 = 18
- 11x = 11
- x = 1
Then
Answer: 25 lawns will be mowed in 40hrs
Step-by-step explanation:
First step: we turn the word problem into an equation:
From the information given;
5 lawns = 8 hours
X lawns = 40 hours
We cross multiply:
8x = 40 x 5
8x = 200
Divide both sides by 8
x = 200/8
= 25
Answer: Choice B
Open circle at 3. Shading to the right
========================================================
Work Shown:
3(8 - 4x) < 6(x - 5)
24 - 12x < 6x - 30
24 + 30 < 6x + 12x
54 < 18x
18x > 54
x > 54/18
x > 3
We use an open circle at 3 to indicate we don't include this endpoint as part of the solution. The solution set is everything larger than 3, so we shade to the right of this open circle.
Answer:
Step-by-step explanation:
What i would do is turn the first one into an improper fraction
7/5 x 1/4
it's easier to multiply this way
see if you can simplify any of the terms first
7 1
5 4
none of the numbers can be broken down further so we just multiply straight across
7 x 1 is 7
5 times 4 is 20
so the answer would be 7/20
